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Software Testing Training Course / Page 308 of 360: Selenium Introduction
Selenium Fundamentals

Selenium Introduction

What is Selenium?

Selenium is a free, open-source suite of tools for automating web browsers, widely used for functional and regression testing of web applications.

The Selenium Suite

  • Selenium IDE: record-and-playback browser extension.
  • Selenium WebDriver: programmatic browser automation library.
  • Selenium Grid: runs tests across multiple machines/browsers in parallel.

Why Selenium is Popular

It's free, supports every major browser and several programming languages, and has a large, active community — making it the de facto standard for web UI automation.

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